Ignitions and Electrical› Charging Systems

Powermaster

ALT SMDELCO LTMOD 140A BK

$261.67

SKU: P01Q 57860

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Powermaster 57860 is a GM CS130 style alternator designed to provide maximum power to your 12-volt charging system. This highly efficient, small-case alternator offers better cooling with internal and external fans and accepts either a 1-wire or 3-wire connection.

It features a 140-amp rating, a right offset, and a straight mount that fits a 5.31” bracket, making it a suitable replacement for 10/12SI units.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandPowermaster
Part NumberP01Q 57860

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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